As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 177 - ON APPROACH INTO BRANSON, THE LANDING GEAR WAS EXTENDED AND RECEIVED A PROXY SYSTEM FAIL MESSAGE ON THE CAS PAGE, THE MESSAGE WOULD NOT CLEAR SO EXECUTED A MISSED APPROACH AND RETURNED TO DFW AIRPORT WHERE MAINTENANCE PERSONNEL REPLACED THE PSEU BOX AND CLEARED THE PROBLEM. (M)